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Enable SQLite shared cache mode.

Browse source 
This allows all threads accessing the same database to share sqlite
objects. This, for example, fixes the issue with several threads
simultaneously writing to the same database file.

See https://www.sqlite.org/sharedcache.html

Addresses BIT-1325
This commit is contained in:
Johanna Amann 2016-07-21 12:08:57 -07:00
parent 697b59cdc8
commit 4968a5c654
4 changed files with 112 additions and 0 deletions
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90
testing/btest/scripts/base/frameworks/logging/sqlite/simultaneous-writes.bro Normal file
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# Test simultaneous writes to the same database file.
#
# @TEST-REQUIRES: which sqlite3
# @TEST-REQUIRES: has-writer Bro::SQLiteWriter
# @TEST-GROUP: sqlite
#
# @TEST-EXEC: bro -b %INPUT
# @TEST-EXEC: sqlite3 ssh.sqlite 'select * from ssh' > ssh.select
# @TEST-EXEC: sqlite3 ssh.sqlite 'select * from sshtwo' >> ssh.select
# @TEST-EXEC: btest-diff ssh.select
#
# Testing all possible types.
redef LogSQLite::unset_field = "(unset)";
module SSH;
export {
redef enum Log::ID += { LOG, LOG2 };
type Log: record {
b: bool;
i: int;
e: Log::ID;
c: count;
p: port;
sn: subnet;
a: addr;
d: double;
t: time;
iv: interval;
s: string;
sc: set[count];
ss: set[string];
se: set[string];
vc: vector of count;
ve: vector of string;
f: function(i: count) : string;
} &log;
}
function foo(i : count) : string
{
if ( i > 0 )
return "Foo";
else
return "Bar";
}
event bro_init()
{
Log::create_stream(SSH::LOG, [$columns=Log]);
Log::create_stream(SSH::LOG2, [$columns=Log]);
Log::remove_filter(SSH::LOG, "default");
Log::remove_filter(SSH::LOG2, "default");
local filter: Log::Filter = [$name="sqlite", $path="ssh", $config=table(["tablename"] = "ssh"), $writer=Log::WRITER_SQLITE];
Log::add_filter(SSH::LOG, filter);
local filter2 = copy(filter);
filter2$name = "sqlite2";
filter2$config = table(["tablename"] = "sshtwo");
Log::add_filter(SSH::LOG2, filter2);
local empty_set: set[string];
local empty_vector: vector of string;
local out = [
$b=T,
$i=-42,
$e=SSH::LOG,
$c=21,
$p=123/tcp,
$sn=10.0.0.1/24,
$a=1.2.3.4,
$d=3.14,
$t=network_time(),
$iv=100secs,
$s="hurz",
$sc=set(1,2,3,4),
$ss=set("AA", "BB", "CC"),
$se=empty_set,
$vc=vector(10, 20, 30),
$ve=empty_vector,
$f=foo
];
Log::write(SSH::LOG, out);
Log::write(SSH::LOG2, out);
}